EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L FabAcademy:Microcontroller_ATtiny3216-SFR U1
U 1 1 60A971BB
P 3500 2650
F 0 "U1" H 3500 3631 50  0000 C CNN
F 1 "Microcontroller_ATtiny3216-SFR" H 3500 3540 50  0000 C CNN
F 2 "FabAcademy:SOIC-20_7.5x12.8mm_P1.27mm" H 3500 2650 50  0001 C CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny3216_ATtiny1616-data-sheet-40001997B.pdf" H 3500 2650 50  0001 C CNN
	1    3500 2650
	1    0    0    -1  
$EndComp
Text GLabel 2800 2350 0    50   Output ~ 0
TX
Text GLabel 2800 2450 0    50   Input ~ 0
RX
Text GLabel 4200 2250 2    50   Input ~ 0
UPDI
Wire Wire Line
	4100 2250 4200 2250
Wire Wire Line
	2800 2150 2900 2150
Wire Wire Line
	2800 2250 2900 2250
Wire Wire Line
	2800 2350 2900 2350
Wire Wire Line
	2800 2450 2900 2450
$Comp
L power:GND #PWR0101
U 1 1 60AB0B74
P 3500 3550
F 0 "#PWR0101" H 3500 3300 50  0001 C CNN
F 1 "GND" H 3505 3377 50  0000 C CNN
F 2 "" H 3500 3550 50  0001 C CNN
F 3 "" H 3500 3550 50  0001 C CNN
	1    3500 3550
	1    0    0    -1  
$EndComp
Wire Wire Line
	3500 3550 3500 3450
$Comp
L power:VCC #PWR0102
U 1 1 60AB1F5D
P 3500 1750
F 0 "#PWR0102" H 3500 1600 50  0001 C CNN
F 1 "VCC" H 3515 1923 50  0000 C CNN
F 2 "" H 3500 1750 50  0001 C CNN
F 3 "" H 3500 1750 50  0001 C CNN
	1    3500 1750
	1    0    0    -1  
$EndComp
Wire Wire Line
	3500 1750 3500 1850
$Comp
L Connector:Conn_01x08_Male J2
U 1 1 60ACE0F3
P 5300 2550
F 0 "J2" H 5272 2524 50  0000 R CNN
F 1 "display" H 5272 2433 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical_SMD_Pin1Left" H 5300 2550 50  0001 C CNN
F 3 "~" H 5300 2550 50  0001 C CNN
	1    5300 2550
	-1   0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0105
U 1 1 60AD003B
P 5000 2250
F 0 "#PWR0105" H 5000 2100 50  0001 C CNN
F 1 "VCC" H 5015 2423 50  0000 C CNN
F 2 "" H 5000 2250 50  0001 C CNN
F 3 "" H 5000 2250 50  0001 C CNN
	1    5000 2250
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0106
U 1 1 60AD0544
P 5000 2350
F 0 "#PWR0106" H 5000 2100 50  0001 C CNN
F 1 "GND" H 5005 2177 50  0000 C CNN
F 2 "" H 5000 2350 50  0001 C CNN
F 3 "" H 5000 2350 50  0001 C CNN
	1    5000 2350
	1    0    0    -1  
$EndComp
Wire Wire Line
	5000 2250 5100 2250
Wire Wire Line
	5100 2350 5000 2350
$Comp
L Connector:Conn_01x02_Male J3
U 1 1 60AD7B24
P 900 7050
F 0 "J3" H 1008 7231 50  0000 C CNN
F 1 "UPDI" H 1008 7140 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left" H 900 7050 50  0001 C CNN
F 3 "~" H 900 7050 50  0001 C CNN
	1    900  7050
	1    0    0    -1  
$EndComp
Text GLabel 1200 7050 2    50   Input ~ 0
UPDI
$Comp
L Connector:Conn_01x04_Male J5
U 1 1 60AE2610
P 1700 7150
F 0 "J5" H 1808 7431 50  0000 C CNN
F 1 "Serial" H 1808 7340 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical_SMD_Pin1Left" H 1700 7150 50  0001 C CNN
F 3 "~" H 1700 7150 50  0001 C CNN
	1    1700 7150
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0110
U 1 1 60AE2D5F
P 2000 7050
F 0 "#PWR0110" H 2000 6900 50  0001 C CNN
F 1 "VCC" H 2015 7223 50  0000 C CNN
F 2 "" H 2000 7050 50  0001 C CNN
F 3 "" H 2000 7050 50  0001 C CNN
	1    2000 7050
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0111
U 1 1 60AE329E
P 2000 7150
F 0 "#PWR0111" H 2000 6900 50  0001 C CNN
F 1 "GND" H 2005 6977 50  0000 C CNN
F 2 "" H 2000 7150 50  0001 C CNN
F 3 "" H 2000 7150 50  0001 C CNN
	1    2000 7150
	1    0    0    -1  
$EndComp
Text GLabel 2100 7350 2    50   Input ~ 0
TX
Text GLabel 2100 7250 2    50   Input ~ 0
RX
Wire Wire Line
	1900 7250 2100 7250
Wire Wire Line
	1900 7350 2100 7350
Wire Wire Line
	2000 7150 1900 7150
Wire Wire Line
	1900 7050 2000 7050
$Comp
L Connector:Conn_01x06_Male J6
U 1 1 60AEEAC9
P 2150 2850
F 0 "J6" H 2258 3231 50  0000 C CNN
F 1 "Conn_01x06_Male" H 2258 3140 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical_SMD_Pin1Left" H 2150 2850 50  0001 C CNN
F 3 "~" H 2150 2850 50  0001 C CNN
	1    2150 2850
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0112
U 1 1 60AEFEA0
P 2450 2750
F 0 "#PWR0112" H 2450 2500 50  0001 C CNN
F 1 "GND" H 2455 2577 50  0000 C CNN
F 2 "" H 2450 2750 50  0001 C CNN
F 3 "" H 2450 2750 50  0001 C CNN
	1    2450 2750
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0113
U 1 1 60AF0473
P 2450 2650
F 0 "#PWR0113" H 2450 2500 50  0001 C CNN
F 1 "VCC" H 2465 2823 50  0000 C CNN
F 2 "" H 2450 2650 50  0001 C CNN
F 3 "" H 2450 2650 50  0001 C CNN
	1    2450 2650
	1    0    0    -1  
$EndComp
Wire Wire Line
	2450 2650 2350 2650
Wire Wire Line
	2350 2750 2450 2750
$Comp
L FabAcademy:LED D1
U 1 1 60B194C2
P 7150 3050
F 0 "D1" H 7143 2795 50  0000 C CNN
F 1 "LED" H 7143 2886 50  0000 C CNN
F 2 "Package_SO:SOIC-8_7.5x5.85mm_P1.27mm" H 7150 3050 50  0001 C CNN
F 3 "https://optoelectronics.liteon.com/upload/download/DS-22-98-0002/LTST-C150CKT.pdf" H 7150 3050 50  0001 C CNN
	1    7150 3050
	0    -1   -1   0   
$EndComp
$Comp
L FabAcademy:R R1
U 1 1 60B1A060
P 7150 2650
F 0 "R1" V 6943 2650 50  0000 C CNN
F 1 "180" V 7034 2650 50  0000 C CNN
F 2 "FabAcademy:R_1206" V 7080 2650 50  0001 C CNN
F 3 "~" H 7150 2650 50  0001 C CNN
	1    7150 2650
	-1   0    0    1   
$EndComp
Wire Wire Line
	4100 2950 5100 2950
Wire Wire Line
	4100 2850 5100 2850
Wire Wire Line
	4100 2750 5100 2750
Wire Wire Line
	4100 2650 5100 2650
Wire Wire Line
	4100 2550 5100 2550
Wire Wire Line
	4100 2450 5100 2450
$Comp
L Interface_UART:MAX485E U2
U 1 1 60ABB043
P 8250 2600
F 0 "U2" H 8250 3281 50  0000 C CNN
F 1 "MAX485E" H 8250 3190 50  0000 C CNN
F 2 "Package_SO:SOIC-8_7.5x5.85mm_P1.27mm" H 8250 1900 50  0001 C CNN
F 3 "https://datasheets.maximintegrated.com/en/ds/MAX1487E-MAX491E.pdf" H 8250 2650 50  0001 C CNN
	1    8250 2600
	1    0    0    -1  
$EndComp
Wire Wire Line
	2350 2850 2900 2850
Wire Wire Line
	2350 2950 2900 2950
Wire Wire Line
	2350 3050 2900 3050
Wire Wire Line
	2350 3150 2900 3150
Wire Wire Line
	7850 2600 7850 2700
Text GLabel 7750 2500 0    50   Output ~ 0
RX
Text GLabel 7750 2600 0    50   Input ~ 0
DIR
Text GLabel 7750 2800 0    50   Output ~ 0
TX
Wire Wire Line
	7750 2500 7850 2500
Wire Wire Line
	7750 2600 7850 2600
Connection ~ 7850 2600
Wire Wire Line
	7750 2800 7850 2800
Text GLabel 2800 2550 0    50   Output ~ 0
DIR
$Comp
L power:VCC #PWR0114
U 1 1 60AE8167
P 3400 7050
F 0 "#PWR0114" H 3400 6900 50  0001 C CNN
F 1 "VCC" H 3415 7223 50  0000 C CNN
F 2 "" H 3400 7050 50  0001 C CNN
F 3 "" H 3400 7050 50  0001 C CNN
	1    3400 7050
	1    0    0    -1  
$EndComp
Text GLabel 8850 2500 2    50   BiDi ~ 0
A
Text GLabel 8850 2800 2    50   BiDi ~ 0
B
Wire Wire Line
	8650 2500 8750 2500
Wire Wire Line
	8650 2800 8750 2800
Text GLabel 3400 7150 0    50   BiDi ~ 0
A
Text GLabel 4100 7150 2    50   BiDi ~ 0
B
$Comp
L FabAcademy:R R2
U 1 1 60B8E29B
P 8750 2650
F 0 "R2" H 8820 2696 50  0000 L CNN
F 1 "120" H 8820 2605 50  0000 L CNN
F 2 "FabAcademy:R_1206" V 8680 2650 50  0001 C CNN
F 3 "~" H 8750 2650 50  0001 C CNN
	1    8750 2650
	1    0    0    -1  
$EndComp
Connection ~ 8750 2500
Wire Wire Line
	8750 2500 8850 2500
Connection ~ 8750 2800
Wire Wire Line
	8750 2800 8850 2800
$Comp
L power:GND #PWR0103
U 1 1 60B938A6
P 8250 3300
F 0 "#PWR0103" H 8250 3050 50  0001 C CNN
F 1 "GND" H 8255 3127 50  0000 C CNN
F 2 "" H 8250 3300 50  0001 C CNN
F 3 "" H 8250 3300 50  0001 C CNN
	1    8250 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	8250 3200 8250 3300
$Comp
L power:VCC #PWR0104
U 1 1 60B93500
P 8250 2000
F 0 "#PWR0104" H 8250 1850 50  0001 C CNN
F 1 "VCC" H 8265 2173 50  0000 C CNN
F 2 "" H 8250 2000 50  0001 C CNN
F 3 "" H 8250 2000 50  0001 C CNN
	1    8250 2000
	1    0    0    -1  
$EndComp
Wire Wire Line
	8250 2000 8250 2100
$Comp
L FabAcademy:R R3
U 1 1 60BA5B07
P 6500 7200
F 0 "R3" H 6570 7246 50  0000 L CNN
F 1 "0" H 6570 7155 50  0000 L CNN
F 2 "FabAcademy:R_1206" V 6430 7200 50  0001 C CNN
F 3 "~" H 6500 7200 50  0001 C CNN
	1    6500 7200
	1    0    0    -1  
$EndComp
Text GLabel 6400 7050 0    50   Input ~ 0
DIR
Text GLabel 6600 7350 2    50   Input ~ 0
DIR
Wire Wire Line
	6400 7050 6500 7050
Wire Wire Line
	6500 7350 6600 7350
Wire Wire Line
	2800 2550 2900 2550
Text GLabel 2800 2150 0    50   Output ~ 0
SCL
Text GLabel 2800 2250 0    50   BiDi ~ 0
SDA
$Comp
L FabAcademy:C C1
U 1 1 60BBDFE3
P 5700 7200
F 0 "C1" H 5815 7246 50  0000 L CNN
F 1 "1uF" H 5815 7155 50  0000 L CNN
F 2 "FabAcademy:C_1206" H 5738 7050 50  0001 C CNN
F 3 "" H 5700 7200 50  0001 C CNN
	1    5700 7200
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0108
U 1 1 60BC47D3
P 5700 7050
F 0 "#PWR0108" H 5700 6900 50  0001 C CNN
F 1 "VCC" H 5715 7223 50  0000 C CNN
F 2 "" H 5700 7050 50  0001 C CNN
F 3 "" H 5700 7050 50  0001 C CNN
	1    5700 7050
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0109
U 1 1 60BC4DB5
P 5700 7350
F 0 "#PWR0109" H 5700 7100 50  0001 C CNN
F 1 "GND" H 5705 7177 50  0000 C CNN
F 2 "" H 5700 7350 50  0001 C CNN
F 3 "" H 5700 7350 50  0001 C CNN
	1    5700 7350
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0117
U 1 1 60BE1381
P 1200 7150
F 0 "#PWR0117" H 1200 6900 50  0001 C CNN
F 1 "GND" H 1205 6977 50  0000 C CNN
F 2 "" H 1200 7150 50  0001 C CNN
F 3 "" H 1200 7150 50  0001 C CNN
	1    1200 7150
	1    0    0    -1  
$EndComp
Wire Wire Line
	1200 7150 1100 7150
Wire Wire Line
	1100 7050 1200 7050
$Comp
L power:GND #PWR0116
U 1 1 60AD4F6E
P 4100 7050
F 0 "#PWR0116" H 4100 6800 50  0001 C CNN
F 1 "GND" H 4105 6877 50  0000 C CNN
F 2 "" H 4100 7050 50  0001 C CNN
F 3 "" H 4100 7050 50  0001 C CNN
	1    4100 7050
	-1   0    0    1   
$EndComp
Wire Wire Line
	3400 7050 3500 7050
Wire Wire Line
	3400 7150 3500 7150
Wire Wire Line
	4000 7050 4100 7050
Wire Wire Line
	4000 7150 4100 7150
$Comp
L Connector_Generic:Conn_02x03_Odd_Even J1
U 1 1 60ADCA83
P 3700 7150
F 0 "J1" H 3750 7467 50  0000 C CNN
F 1 "RS485" H 3750 7376 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical_SMD" H 3700 7150 50  0001 C CNN
F 3 "~" H 3700 7150 50  0001 C CNN
	1    3700 7150
	1    0    0    -1  
$EndComp
Text GLabel 2800 2650 0    50   Output ~ 0
SEL
Wire Wire Line
	2800 2650 2900 2650
$Comp
L power:GND #PWR0107
U 1 1 60AFF808
P 7150 3300
F 0 "#PWR0107" H 7150 3050 50  0001 C CNN
F 1 "GND" H 7155 3127 50  0000 C CNN
F 2 "" H 7150 3300 50  0001 C CNN
F 3 "" H 7150 3300 50  0001 C CNN
	1    7150 3300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7150 3200 7150 3300
Text GLabel 7150 2400 0    50   Input ~ 0
SEL
Wire Wire Line
	7150 2400 7150 2500
Wire Wire Line
	7150 2800 7150 2900
Wire Wire Line
	4700 2350 4700 1750
Wire Wire Line
	4700 1750 5100 1750
Wire Wire Line
	4100 2350 4700 2350
$Comp
L power:GND #PWR0115
U 1 1 60ADB6EB
P 5000 1850
F 0 "#PWR0115" H 5000 1600 50  0001 C CNN
F 1 "GND" H 5005 1677 50  0000 C CNN
F 2 "" H 5000 1850 50  0001 C CNN
F 3 "" H 5000 1850 50  0001 C CNN
	1    5000 1850
	1    0    0    -1  
$EndComp
Wire Wire Line
	5000 1850 5100 1850
$Comp
L Connector:Conn_01x02_Male J4
U 1 1 60AE142C
P 5300 1750
F 0 "J4" H 5408 1931 50  0000 C CNN
F 1 "Buzzer" H 5408 1840 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical_SMD_Pin1Left" H 5300 1750 50  0001 C CNN
F 3 "~" H 5300 1750 50  0001 C CNN
	1    5300 1750
	-1   0    0    -1  
$EndComp
$EndSCHEMATC